Case for powdered cosmetic product including an improved opening/closing device

ABSTRACT

A case for powdered cosmetic product includes at least one cover and one base which are movably mounted against one another between at least one closed position and one open position of the case, wherein the base includes a cavity intended to receive the powdered cosmetic product, which is closed by an opening/closing device configured to selectively deliver the powdered cosmetic product, the opening/closing device including at least first opening/closing means which, including first orifices (in communication with the cavity, are secured to the base, and second opening/closing means which, including second orifices, are rotatably mounted with respect to the first means between at least one blocking position and one usage position, wherein the first means include at least one first flexible membrane and the second means include at least one second flexible membrane.

CROSS REFERENCE TO RELATED APPLICATIONS

This application claims priority under 35 U.S.C. § 119(a) to French patent application number 1859365, filed on Oct. 9, 2018, the entire teachings of which are incorporated herein by reference.

BACKGROUND OF THE INVENTION Field of the Invention

The invention relates to a case for powdered cosmetic product and more particularly to a case for a powdered cosmetic product that includes an opening/closing device.

Description of the Related Art

The invention relates more specifically to a case for powdered cosmetic product, including at least one cover and one base which are mounted for movement with respect to one another between at least one closed position and one open position of the case, wherein the base includes a cavity intended to receive the powdered cosmetic product which is closed by an opening/closing device including at least first means which, including first orifices in communication with the cavity, are secured to the base, and second means which, including second orifices, are rotatably mounted with respect to the first means between at least one blocking position and a usage position.

The state of the art discloses different examples of designing a case (or container) intended to receive a powdered cosmetic product, such as loose powder or other similar products used to put on make-up.

According to a known design, the case includes a base including a cavity intended to contain a powdered cosmetic product, a screen which is arranged at the level of the opening of the cavity and through-orifices from which the cosmetic product is discharged in view of the use thereof.

In an embodiment of a case according to this design, the screen is rigid. The screen is, for example, made in the form of a perforated plate equipped with orifices, such as a network of circular holes.

Such a case in particular has the disadvantage of having a dispersion of the powdered cosmetic product through the multiple orifices of the screen, in other words, an uncontrolled discharging of the product outside of the cavity forming a reservoir.

The dispersion of the cosmetic product through the screen is likely to occur, on the one hand, during the transport of the case (in the closed position) and, on the other hand, during the use of the case (in the open position).

During the transport, the dispersion of the cosmetic product is limited by a cover covering the screen in the closed position.

During use, the dispersion of the powdered cosmetic product is furthermore inevitable, since it is necessary to shake or reverse the case to obtain the release of the cosmetic product.

Such a movement is also more significant when, during use, the quantity of cosmetic product present in the cavity decreases.

In another embodiment of a case according to this design, the screen used is “flexible” in order, in particular, to make it possible for access to the cosmetic product located in the cavity and, by comparison with a case with a rigid screen, without necessarily having to shake the case.

The flexible screen is, for example, made in the form of a grid, made of nylon or another material, consisting of a set of meshes, each delimiting one of the orifices for the passage of the powdered cosmetic product outside of the cavity.

As in the preceding embodiment example, such a case in particular has the disadvantage of allowing a dispersion of the powdered cosmetic product through the multiple orifices of the screen, on the one hand during the transport of the case (in the closed position) and, on the other hand, during the use of the case (in the open position).

To limit such dispersion during transport, it is in particular known to arrange an applicator—typically a sponge—above the screen, such that at least one portion of the cosmetic product dispersed through the orifices is captured by the sponge.

However, the sponge does not totally prevent the dispersion of the powdered cosmetic product outside of the cavity, which poses a hygiene (or cleanliness) problem for the case.

In addition, the sponge also includes on the face thereof in contact with the grid, a quantity of cosmetic product that is often excessive, such that the saturated sponge is thus difficult to use to apply make-up.

To attempt to overcome the problem of dispersion during transport, it is also known to use a stopper, for example secured to the cover of the case. Such a stopper is configured to cover the screen in the closed position of the case, so as to isolate and to thus avoid the powdered cosmetic product from being able to be dispersed.

However, such a stopper does not maintain the powdered cosmetic product inside the cavity, and does not prevent the product from being emptied at the level of and/or beyond the screen.

Subsequently, the powdered cosmetic product is located in the space between the screen and the stopper, the cosmetic product consequently covers the surface of the stopper, in the same manner as the face of a sponge according to the preceding example.

Yet, the cosmetic product present on the surface of the stopper is then likely to be dispersed everywhere after the opening of the cover, in particular soiling the case, the hands of the user, etc.

In addition and despite the use of such a stopper, there is always a risk of leakages when the cover (to which the stopper is secured) is not closed correctly, for example not screwed correctly, as the stopper cannot thus perfectly fulfil its role.

Such a design also has the disadvantage of adding, with the stopper, a portion supplementary to the cover, even a part supplementary to the case, which in particular has the consequence of increasing the production cost thereof.

Yet, the stopper does not completely solve the problem of dispersion, as the problem of dispersion or uncontrolled discharging is not limited to the single instance of transporting the case, but also occurs during use, when the case is in the open position.

Indeed, during use, the contact between the screen and an applicator, such as a brush, is conducive to a dispersion of the powdered cosmetic product, in particular through multiple orifices of the screen not covered by the applicator.

The phenomenon of dispersion during use is thus all the more significant as the surface of the screen of the case, a cosmetic product such as free powder furthermore having a significant “volatility”, i.e. a great ease of dispersion.

That is the reason why the screen is generally sized to have a reduced surface, in particular a surface less than the diameter of the case, which furthermore has the consequence of limiting the movement of the user handling an applicator during the use of the case.

The reduction of the surface of the flexible screen makes it possible to reduce the phenomenon of dispersion of the cosmetic product of which the volatility would otherwise be too significant.

Thus, the problem of dispersion is, at best, only partially resolved during the transport by using such a stopper and this problem fully remains during the use of the case.

In use, the powdered cosmetic product will be dispersed and emptied when the applicator comes into contact with the screen, even also when the base of the case is shaken to discharge the product on an applicator like a sponge.

One of the consequences of this dispersion of the powdered cosmetic product in use, during transport for instance, is ultimately the lack of hygiene (or cleanliness) of the case.

Yet, such a lack of hygiene or cleanliness of the case is particularly badly perceived in terms of quality, i.e. disappointing for a user.

It will be understood that a user will not want to handle a case that is completely soiled by the powdered cosmetic product thus dispersed, and will not wish to soil the inside of a bag wherein such a case would be transported.

The cases provided with a screen according to the prior art are therefore not satisfactory, in particular due to the abovementioned problems of dispersion of the product and hygiene (or cleanliness).

According to another known design, the case includes an opening/closing device of the rotating type including a first screen and a second screen which are superposed, and of which one is rotatably mounted with respect to the other, respectively between a blocking position and a usage position.

The position for blocking the opening/closing device corresponds to a position wherein the orifices of the second screen are angularly offset with respect to the orifices of the first screen arranged below, so as to block the passage of the powdered cosmetic product contained in a cavity of the base of the case that closes the opening/closing device.

The position for using the opening/closing device corresponds to a position wherein the orifices of the second screen are superposed with the orifices of the first screen so as to enable the passage of the powdered cosmetic product successively through the orifices of the first screen and the orifices of the second screen.

The orifices through the screens are for example formed by a network of holes or perforations.

An opening/closing device of this type makes it possible to avoid the use of a stopper, as described above for a case including a single screen.

However, such an opening/closing device makes it, at most, possible to limit the dispersion of the powdered cosmetic product during transport, the problems of dispersion and hygiene (or cleanliness) of the case not being at all particularly resolved during use.

Indeed, the opening/closing device of such a case having been actuated beforehand to occupy the usage position, the dispensing of the cosmetic product through the orifices of the two superposed screens is obtained by turning over the case, even by moving or by shaking the base of the case.

Thus, the movement associated with the delivery of the cosmetic product of such a case during the use thereof causes a significant dispersion of the cosmetic product.

With such a flipping or shaking movement, the powdered cosmetic product delivered is indeed dispersed without control as it exits the orifices of the screens, for example, to be collected by means of an applicator or sometimes in the cover.

Consequently, the problem of dispersion of the cosmetic product is not particularly resolved during use and hygiene (or cleanliness) of the case is not satisfactory.

In addition, it is not possible to freely choose, accurately, a given quantity of powdered cosmetic product, in particular depending on need, which will not be the same if the user wants to put on make-up completely or only touch up her make-up.

During the flipping or shaking of the case, the quantity delivered by the opening/closing device is predetermined by the configuration of two screens, more specifically the number of orifices, the dimensions of the orifices, etc. such that the quantity of powdered cosmetic product is delivered without control, nor great precision.

Whether flipped over or even shaken, the same manner of using such a case involves a dispersion of the powdered cosmetic product and, therefore, causes a significant problem of hygiene, and risks of soiling.

Indeed, the dispersion of the cosmetic product occurring during use directly affects the general hygiene of the case, including later during transport and despite the opening/closing device.

In the absence of sealing means on the case, the powdered cosmetic product thus dispersed is likely to escape outside of the case even when it is closed by a cover.

Consequently, such a case is not satisfactory, due to problems of dispersion and hygiene, movement and predetermined quantity of product.

An aim of the present invention is to propose a new design of an opening/closing device for a case for powdered cosmetic product in order, in particular, to overcome at least some of the disadvantages of the state of the art, particularly all of the problems of dispersion and hygiene, while also proposing a case affording a simple, comfortable usage movement, making it possible for the user to freely choose the quantity of powdered cosmetic product.

BRIEF SUMMARY OF THE INVENTION

With this aim, the invention proposes a case of the type described above, wherein the first means include at least one first flexible membrane and the second means include at least one second flexible membrane.

Advantageously, the two flexible or elastic membranes of the opening/closing device are configured to limit the dispersion of the powdered cosmetic product, in particular thanks to the orifices that each of the membranes includes.

Advantageously, the orifices of each flexible membrane mainly have the shape of a non-rectilinear slot radially extending between the centre of the membrane and the outer periphery thereof, preferably by expanding from the centre outwards.

Advantageously, the flexible membranes are made of an elastomer material, preferably made of silicone.

By comparison with membranes according to the prior art for example, made of nylon, the flexible membranes according to the invention are mainly more rigid.

However, the flexible membranes are locally more flexible, thanks to the presence of the orifices, in particular thanks to the forms thereof such as slots, but also thanks to the choice of material, thickness of each flexible membrane, such that the flexibility of a membrane is determined by the combination of these different elements.

Advantageously, the flexible membranes make it possible, during use, to access the powdered cosmetic product contained in the cavity, in particular to retrieve more easily the product in the bottom, as in the periphery, in the zone of the cavity radially distant from the centre of the base.

Advantageously, the orifices of the flexible membranes contribute to increasing the elasticity of the membranes, to increase the elastic deformation capacity thereof in use, in particular under the action of an applicator.

Advantageously, the orifices formed by non-rectilinear radial slots, in particular bent or curved, make it possible, by perforating each of the membranes, to obtain a supplementary deformation capacity, without, however, needing to reduce the thickness of the flexible membranes with the risk of weakening them.

Advantageously, slots having a bent or curved shape make it possible to obtain an increased deformation of the membrane at the level of the support zone of the applicator.

When in contact with the applicator, the axis of deformation or of folding of a flexible membrane including slots having such non-rectilinear shapes is an axis which extends radially from one end to the other of the slot and is located outside of the slot, in the material of the membrane between consecutive slots.

By comparison, the deformation obtained would be less significant with a membrane including rectilinear slots for which the axis of deformation extending radially from one end to the other of the slot is combined with one of the edges of the slot and thus limits the possibility of accessing the bottom of the cavity or the periphery thereof.

During use, the pressure exerted locally by an applicator on the flexible membranes causes a deformation of the non-rectilinear slots located in the contact zone and advantageously causes a phenomenon of “closing” the slots located radially opposite the contact zone.

Indeed, the slots will be radially stretched due to the deformation of each of the flexible membranes, which will cause them to shrink, the radial edges thereof moving closer together. It is thus possible to limit the dispersion of the powdered cosmetic product in the zones which are not in contact with the applicator.

Advantageously, the opening/closing device of the case according to the invention makes it possible to more or less limit, thanks to the membranes, the dispersion of the powdered cosmetic product, both during transport and during use of the case.

During the transport of the case, the powdered cosmetic product is maintained inside the cavity, of which the opening is blocked by the two membranes of the opening/closing device occupying the blocking position.

Preferably the sealing means arranged between the two membranes, the contact between the respectively upper and lower faces of the two membranes in the blocking position further improve the blocking achieved with the membranes and thus the hygiene (or cleanliness) of the case thanks to the limiting of the dispersion.

In the same manner, the sealing means engaging with the cover in the closed position contribute to improving the hygiene (or cleanliness) of the case, by avoiding, after use, the dispersion of the cosmetic product, in particular during the transport thereof.

During use, the flexible membranes of the opening/closing device occupying the usage position, the powdered cosmetic product is accessible through the respective orifices of the membranes.

By comparison with the prior art, such as a case including a single screen, for example, formed by a grid, the dispersion of the cosmetic product is therefore not possible as soon as the membranes form a barrier between two consecutive orifices.

The dispersion is thus limited by the solid portions of the membranes, improving the hygiene (or cleanliness) of the case.

Advantageously, the opening/closing device is likely to occupy at least one intermediate position between the blocking and usage positions, whereby it is possible to make the surface of the orifices of the flexible membranes vary, which are thus partially (and not totally) superposed on top of one another.

Advantageously, the successive intermediate positions therefore also make it possible to control access to the powdered cosmetic product.

In use, the applicator is brought into contact with the flexible membranes, which will undergo deformation to make it possible to remove the powdered cosmetic product, for example, superficially at the level of the orifices (when the applicator is a sponge) and/or partially through the orifices (when the applicator is a brush).

The orifices of the flexible or elastic membranes make it possible to directly retrieve (without turning over or shaking the case), the powdered cosmetic product contained in the cavity of the base.

Advantageously, the orifices of the flexible or elastic membranes make it possible to freely retrieve the desired quantity of the product by means of an applicator.

By comparison with the prior art, the quantity of powdered cosmetic product delivered is therefore not predetermined by the characteristics of the opening/closing device, but freely dosed by the user.

The case according to the invention is easier to use for the user, in particular with a direct access to the cosmetic product after the rotation of the second means of the opening/closing device to bring them into the usage position.

Indeed, the case according to the invention affords a simple and comfortable movement, in particular as it is not necessary to flip over, or even shake or move the case beforehand, to be able to use the powdered cosmetic product contained in the cavity of the base.

Advantageously, the user directly accesses the cosmetic product through the orifices of the membranes using an applicator, such as a brush or a sponge.

This movement makes it possible for the user to freely retrieve the desired quantity of cosmetic product using an applicator.

Advantageously, the user is free to retrieve a given quantity of it, for example by performing, with the applicator, a slight circular motion on the surface of the flexible membranes.

The case with the two flexible membranes according to the invention is similar, in its use, to that of a case according to the prior art including one single screen, but without, however, having the problems of dispersion or the problems of hygiene or cleanliness.

The rotating actuation of the opening/closing device of a case according to the invention between the blocking and usage positions is similar to that of a case according to the prior art including two screens but, with the flexible membranes, direct and free access is given to the powdered cosmetic product, by there again resolving the problems of dispersion and the problems of hygiene (or of cleanliness).

Furthermore, the case according to the invention offers a simplified movement, the case not requiring, in particular, to be flipped over or shaken, the case thereby advantageously not having the problems of dispersion and of hygiene thereof.

According to other features of the invention:

the first orifices of the first flexible membrane and the second orifices of the second flexible membrane have a non-cylindrical shape;

the first orifices of the first flexible membrane and the second orifices of the second flexible membrane have a non-rectilinear shape, and in particular a bent or curved shape;

the first orifices of the first flexible membrane and the second orifices of the second flexible membrane have a surface which increases radially from the inside outwards;

the first orifices of the first flexible membrane and the second orifices of the second flexible membrane are respectively in the shape of slots;

the first orifices of the first flexible membrane and the second orifices of the second flexible membrane are respectively configured to make it possible to freely retrieve a quantity of powdered cosmetic product by means of an applicator, through the second orifices of the second membrane, aligned totally or partially with the first orifices of the first membrane;

the first orifices of the first flexible membrane and the second orifices of the second flexible membrane are respectively configured so as to increase the flexibility of the first membrane and of the second membrane;

the first flexible membrane and the second flexible membrane are made of an elastomer material, in particular made of silicone;

the first membrane and the second membrane are in contact with one another in the blocking position and in the usage position;

the cavity is part of a flexible part, which is secured to the base, the part having, in particular, a bellows shape.

According also to other characteristics of the invention:

the second means of the opening/closing device are able to occupy at least one intermediate position between the blocking position and the usage position wherein the second orifices are partially superposed on the first orifices;

the first means of the opening/closing device include a fixed ring to which a first flexible membrane is secured;

the fixed ring and the first flexible membrane are obtained by overmoulding, in particular by bi-material injection;

the fixed ring is mounted axially on a body of the base by snap fitting and the fixed ring is blocked in rotation by form-fitting with respect to the body of the base;

the second means of the opening/closing device include a rotating ring to which the second flexible membrane is secured;

the rotating ring and the second flexible membrane are obtained by overmoulding, in particular by bi-material injection;

the first means of the opening/closing device include first sealing means configured to ensure sealing between the first means and the second means of the opening/closing device;

the first flexible membrane includes the first sealing means intended to engage with the second means of the opening/closing device, in particular with the second flexible membrane;

the first sealing means are integrally made of a single part with the first flexible membrane;

the first sealing means include at least one sealing snap ring which protrudes with respect to an upper face of the first membrane so as to engage with a lower face of the second membrane at least in the blocking position and in the usage position;

the second means of the opening/closing device include second sealing means configured to ensure sealing of the case in the closed position;

the second flexible membrane of the second means of the opening/closing device includes the second sealing means intended to engage with the cover in the closed position;

the second sealing means are integrally made of a single part with the second flexible membrane;

the second sealing means include at least one sealing snap ring which protrudes with respect to an upper face of the second membrane so as to engage with an inner face of the cover in the closed position;

the case includes spacing means configured to cause an up-and-down movement of the rotating ring relative to the fixed ring so as to create a clearance between the second membrane and the first membrane when the rotating ring is driven in rotation between the blocking position and the usage position, and vice versa;

the spacing means include at least one pin secured to the fixed ring and a complementary groove secured to the rotating ring, the groove including guiding faces which have a profile configured to cause the up-and-down movement of the rotating ring relative to the fixed ring;

the cover centrally includes a centring ring which is configured to engage with the second flexible membrane in the closed position;

the first orifices of the first flexible membrane and the second orifices of the second flexible membrane are respectively configured to make it possible to remove directly the powdered cosmetic product by means of an applicator, such as a brush or a sponge, without requiring the flipping over or shaking of the case;

the first orifices of the first flexible membrane and the second orifices of the second flexible membrane are identical;

the fixed ring is mounted axially on the body of the base by snap fitting or by any other equivalent means such as by gluing or welding;

the means for blocking in rotation by form-fitting include means secured to the fixed ring and other complementary means secured to the base;

the fixed ring includes ribs which engage with a gear ring secured to the body of the base to block in rotation the fixed ring with respect to the body of the base;

the fixed ring includes bosses which engage with recesses formed in the body of the base to block in rotation the fixed ring with respect to the body of the base;

the rotating ring includes an outer surface which is grooved (or knurled) so as to make the gripping thereof easier during handling for driving in rotation between the blocking position and the usage position;

the direction of rotation of the rotating ring between the usage position and the blocking position is the same as that of the cover between the opening position and the closed position;

the case includes connection means configured to axially link (with no clearance), the rotating ring to the fixed ring, by leaving the rotating ring free in rotation with respect to the fixed ring;

the connection means include at least one pin secured to the fixed ring which is mounted in an associated groove of the rotating ring so as to axially link the rotating ring to the fixed ring, by leaving the rotating ring free to rotate with respect to the fixed ring;

the groove includes successively at least one section for mounting the pin, which axially extends and a section for guiding the pin which extends circumferentially in a radial plane, orthogonal to the axial direction;

the case includes means for guiding in rotation provided between the fixed ring and the rotating ring;

the section for guiding the groove includes guiding faces, respectively upper and lower, intended to engage with the pin;

the case includes abutment means which determine respectively the blocking position and the usage position of the opening/closing device;

the section for guiding the groove includes at least one first abutment face and a second abutment face which, intended to engage with the pin, extend axially and determine respectively the usage position and the blocking position;

the second abutment face is supported by a lug provided in the section for guiding the groove, the lug making it possible to maintain the pin in the groove after mounting;

the base includes a body and a bottom which is secured to the body, preferably by welding or any other equivalent means such as by snap fitting, by gluing, by screwing;

the part forming the cavity and the body of the base is obtained by overmoulding, in particular by bi-material injection;

the bottom of the base centrally includes an opening configured to afford access to the part;

the cavity is integrally made of a single part with the body of the base;

the case includes fool proof means configured to enable closing of the cover of the case only when the opening/closing device occupies the blocking position.

Additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The aspects of the invention will be realized and attained by means of the elements and combinations particularly pointed out in the appended claims. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. The embodiments illustrated herein are presently preferred, it being understood, however, that the invention is not limited to the precise arrangements and instrumentalities shown, wherein:

FIGS. 1 and 2 are perspective views which show, as an exploded view, a first embodiment of a case for powdered cosmetic product according to the invention and which illustrate such a case of which the base includes a cavity formed by a bellows-shaped flexible part and of which the opening/closing device includes a first flexible membrane and a second flexible membrane respectively secured to a fixed ring and a rotating ring;

FIG. 3 is a perspective view which shows, as a cross-sectional view, a case according to the first embodiment in the closed position and which illustrates a first sealing achieved between the first flexible membrane and the second flexible membrane and a second sealing achieved between the second flexible membrane and the cover;

FIG. 4 is a perspective view which shows, as a cross-sectional view, a case according to the first embodiment in the open position (without the cover) and which illustrates the opening/closing device in an intermediate position, between a blocking position and a usage position, wherein an axial clearance is created between the first flexible membrane and the second flexible membrane to avoid any friction between them during the driving in rotation, in one direction or in the other, of the rotating ring of the opening/closing device;

FIGS. 5, 6 and 7 are top views, respectively complete views of FIGS. 5 and 7, and a half-view of FIG. 6, which show the case according to the first embodiment in the open position and which illustrate the flexible membranes of the opening/closing device occupying successively the blocking position, one of the intermediate positions and the usage position;

FIG. 8 is a cross-sectional view which shows a case according to FIGS. 1 to 7 and which further illustrates the deformation of the membranes during use, here under the action of an applicator formed by a brush;

FIG. 9 is a top view which shows the case during use according to FIG. 8 and which illustrates the respective deformation of the slots forming the orifices of the flexible membranes with respect to the contact point of the applicator;

FIG. 10 is a perspective view which shows, as a partially exploded view, a second embodiment of a case for powdered cosmetic product according to the invention and which illustrates a case, in which the opening/closing device is identical to that of the first embodiment of FIGS. 1 to 9 and in which the cavity intended to receive the powdered cosmetic product is made of one single part with the base;

FIG. 11 is a cross-sectional view which shows a case according to FIG. 10 and which further illustrates the cavity which is provided within the material of the body of the base;

FIGS. 12 and 13 are perspective views which show, as an exploded view, a third embodiment of a case for powdered cosmetic product according to the invention and which illustrate such a case including a cover which is fixed on the base by a bayonet mounting;

FIGS. 14 to 16 are perspective views which show a case according to the third embodiment including fool proofing means configured to only enable the closing of the case by the cover thereof if the opening/closing device is in the blocking position and which illustrate successively such a closing of the case, from the open position in FIG. 14 to the closed position in FIG. 16.

DETAILED DESCRIPTION OF THE INVENTION

In the description below, in a non-limiting manner, the longitudinal, vertical and transversal orientations will be adopted, in reference to the trihedron (L, V, T) shown in FIGS. 1 to 16.

By convention, the longitudinal and transversal orientations are determined, in a fixed manner, with respect to the base of the case such that the open or closed position of the cover of the case has no effect on the longitudinal and transversal orientations.

Also, in a non-limiting manner, the terms “upper” and “lower” will be used in reference to the vertical orientation of the trihedron (L, V, T).

In addition, the terms “internal or inner” and “external or outer” are respectively used with respect to the case and generally to designate an element located either inside, or on the outside of the case.

By convention, the case has a main vertical orientation axis which determines an “axial” direction as well as a “radial” direction which is orthogonal to the axial direction.

In the embodiments of the case shown in FIGS. 1 to 16, the main axis constitutes an axis of rotation for the cover of the case and for the rotating ring of the opening/closing device.

In FIGS. 1 to 9, a first embodiment of a case 10 for powdered cosmetic product has been shown.

A powdered cosmetic product P is, for example, constituted of the free powder intended to be used in the application of make-up.

The powdered cosmetic product P is generally applied on the face using an applicator (not shown), in particular by means of a brush or a sponge (or any other equivalent means).

Preferably, the powdered cosmetic product P is intended to be applied by means of a brush, which is here separate from the case 10.

In a variant, the case 10 is configured to include at least one applicator of the powdered cosmetic product P. The case 10 thus advantageously includes at least one housing intended to receive the at least one applicator.

The case 10 for powdered cosmetic product includes at least one cover 12 and one base 14, which are movably mounted against one another between at least one closed position and one open position of the case.

The case 10 has a main axis O determining the axial direction. The cover 12 and the base 14 have a complementary shape conferring to the case 10 its aesthetic qualities, in particular in the closed position.

In a non-limiting manner, the case 10 has a generally cylindrical shape, of a circular cross-section, centred on the main axis O.

In a variant, the case 10 could have another general shape, in particular parallelepiped, in particular a square or rectangular shape.

Advantageously, the case is a “compact”-type case, i.e. sized so as to be able to be transported, in particular, but not exclusively, in a bag, for example the handbag of a user.

Preferably, the cover 12 is removable with respect to the base 14, i.e. the cover 12 is separated from the base 14 in the open position of the case.

In a variant not shown, the cover 12 is connected to the base 14 by articulation means, such as a hinge. The cover 12 is thus rotatably mounted with respect to the base 14 about an axis of rotation determined by the articulation means, respectively between at least one closed position and one open position.

As illustrated in FIGS. 1 to 3, the cover 12 includes a wall 16 and a circumferential wall 18. The cover 12 has, along its cross-section through a vertical plane intersecting with the main axis O, an inverted “U” shape.

The wall 16 extends radially, either in a horizontal plane (L, T) of the trihedron, when the cover 12 is in the closed position, and the wall 18 extends axially downwards, in the extension of the wall 16.

The wall 18 includes an edge 19 at the free end thereof which is able to engage, in the closed position of the case, with a shoulder 15 of the base 14 extending radially.

The wall 16 of the cover 12 includes respectively a lower face 20 and an upper face 21.

Advantageously, the cover 12 includes a centring ring 22 which is formed by a circular central portion extending axially protruding from the lower face 20.

Preferably, the centring ring 22 is integrally made of a single part with the cover 12, of which the wall 16 thus has centrally a greater thickness as can be seen in the cross-section view of FIG. 3.

In this first embodiment, the cover 12 is intended to be fixed by screwing on the base 14 in the closed position of the case 10.

The cover 12 includes, on an inner face 23 of the wall 18, a thread 24 intended to engage with a complementary thread 26 of the base 14.

Preferably, the base 14 of the case 10 is made of two parts, on the one hand, a body 28 which includes a cavity 30 intended to receive the powdered cosmetic product P and, on the other hand, a bottom 32.

Such an embodiment of the base 14 in at least two parts is intended to facilitate the production thereof, the body 28 and the bottom 32 being preferably made of a plastic material and produced by moulding.

The bottom 32 is mounted inside the body 28 of the base 14 and preferably fixed by welding.

In a variant, the bottom 32 is fixed to the body 28 by any equivalent fixing means, such as by snap fitting, by gluing or also by screwing.

Axially, the body 28 of the base 14 has a tiered profile, the body 28 including a wall 34 which extends circumferentially, along the axial direction.

In a lower section 34A, the wall 34 is axially delimited, on the one hand, by an edge 35 delimiting an opening by which the bottom 32 is mounted in the body 28 and, on the other hand, by the shoulder 15.

In an intermediate section 34B, the wall 34 is axially delimited, on the one hand, by the shoulder 15 and, on the other hand, by another shoulder 36 extending radially.

The intermediate section 34B of the wall 34 is provided with the thread 26 intended, in the closed position, to engage with the thread 24 of the cover 12.

In an upper section 34C, the wall 34 is axially delimited, on the one hand, by the shoulder 36 and, on the other hand, by a gear ring 38, here circumferentially continuous.

In this first embodiment, the cavity 30 is formed by a part 40 which is secured to the body 28 of the base 14. In a variant, the part 40 can be designed as a full refill, which could be mounted reversibly to the body of the base.

Preferably, the part 40 is flexible and mainly has the shape of bellows, here a truncated and tiered shape. This bellows includes an alternating succession of folds 58 and concentric, flat, annular surfaces. There are three folds 58 in this example. However, there could be more or less folds. The folds 58 have a staircase profile, and not a saw-tooth profile like an accordion. This makes it possible to have concentric, flat, annular surfaces between the folds 58. These concentric, flat, annular surfaces make it possible to receive the product P.

The part 40 includes a bottom 42 axially delimiting the lower end thereof and the outer diameter of the part 40 increases successively from the bottom 42 to the upper end thereof, which delimits an opening 44 for accessing the cavity 30.

Preferably, the part 40 forming the cavity 30 and the body 28 of the base 14 are obtained by overmoulding, in particular by bi-material injection.

The bottom 32 of the base 14 includes a wall 46 which extends radially, either in a horizontal plane (L, T) of the trihedron, and a circumferential wall 48 which extends axially upwards, in the extension of the wall 46.

The wall 46 of the bottom 32 of the base 14 includes a lower face 50 and an upper face 51.

Advantageously, the bottom 32 of the base 14 includes an axial opening 52 which, arranged centrally through the wall 46, is configured to make it possible for an access to the part 40 and more specifically to the bottom 42 of the part 40.

The opening 52 is intended to make it possible for the user to exert manually, for example using at least one finger, an axial force on the bottom 42 of the part 40 so as to cause a movement of the powdered cosmetic product P contained in the cavity 30 in the direction of the opening 44.

Advantageously, the bottom 32 includes a circumferential partition 54 which, delimiting the opening 52 for accessing the bottom 42 of the part 40, extends axially upwards from the upper face 51.

Preferably, the bottom 32 includes another circumferential partition 56 which, concentric with the partition 54, extends axially upwards from the upper face 51.

As illustrated in FIGS. 3 and 4, after the mounting of the bottom 32 in the body 28, the free end of the partition 54 is received in the inside of a fold 58 of the bellows-shaped part 40.

The free end of the partition 56 engages with a flat portion of the part 40 included between the two other folds 58.

To obtain a part 40, which is advantageously flexible, the part 40 is advantageously made of an elastomer material in order to provide it with deformation capacity, or flexibility.

Advantageously, the bottom 32 includes at least one partition such as the partition 54 and/or the other partition 56. The partitions 54 and 56 are intended to support the part 40 and ensure the positioning thereof, in particular that of the bottom 42 of the part 40 with respect to the opening 52 passing through the wall 16 of the bottom 32 of the base 14.

In FIG. 3, the powdered cosmetic product P is shown, such as the free powder, by points in order to materialise it in the cavity 30 intended to be more or less filled with it.

The case 10 includes an opening/closing device 60 intended to close, or block, the cavity 30 containing the powdered cosmetic product P.

The opening/closing device 60 is configured to deliver selectively the powdered cosmetic product P.

The opening/closing device 60 includes at least first means 62 which are secured to the base 14, here to the body 28 of the base 14.

The first means 62 of the opening/closing device 60 include first orifices 64 which communicate with the cavity 30.

The opening/closing device 60 includes at least second means 66 which are complementary to the first means 62.

The second means 66 of the opening/closing device 60 include second orifices 68 which are able to communicate totally or partially with the first orifices 64 to make the powdered cosmetic product P accessible.

The first orifices 64 axially pass through the first membrane 70 and the second orifices 68 axially pass through the second membrane 72. The flat portions of the bellows supporting the product P are oriented parallel to the membranes 70, 72. The orifices 64 and 68 are therefore located directly opposite the product P contained in the bellows.

The opening/closing device 60 is of the rotating type.

The second means 66 are rotatably mounted with respect to the first means 62 between at least one blocking position and a usage position.

As illustrated as a top view in FIG. 5, the blocking position is a position wherein the second orifices 68 are angularly offset along the axis O with respect to the first orifices 64 to block the passage of the powdered cosmetic product P contained in the cavity 30.

As illustrated as a top view in FIG. 7, the usage position is a position wherein the second orifices 68 are axially superposed on the first orifices 64 to enable the passage of the powdered cosmetic product P contained in the cavity 30.

Advantageously, the second means 66 of the opening/closing device 60 are likely to occupy at least one intermediate position between the blocking position and the usage position.

As illustrated by a half-view in FIG. 6, an intermediate position is a position wherein the second orifices 68 are partially superposed on the first orifices 64.

Preferably, the second means 66 of the opening/closing device 60 are capable of occupying several intermediate positions, freely determined by the user.

In the usage position, the second orifices 68 are axially aligned with respect to the first orifices 64 while, in the intermediate position, the second orifices 68 are only partially axially aligned with respect to the first orifices 64.

The opening/closing device 60 is further characterised by the fact that the means 62 include at least one first flexible membrane 70 and the second means 66 include at least one second flexible membrane 72.

The second flexible membrane 72 is intended to be axially arranged above the first flexible membrane 70, superposed on the first membrane 70.

Advantageously, the first flexible membrane 70 and the second flexible membrane 72 are respectively configured to be deformed, at least axially, in particular under the action of an applicator, such as a brush or a sponge.

The first flexible membrane 70 and the second flexible membrane 72 make it possible, by being deformed axially, to freely and directly retrieve the powdered cosmetic product P.

The powdered cosmetic product P is, for example, retrieved at the level of the second orifices 68 of the second membrane 72, totally or partially aligned with the first orifices 64 of the first membrane 70, by passing onto the surface and/or through the second orifices 68 according to the type of applicator used.

Advantageously, the first flexible membrane 70 and the second flexible membrane 72 are made of an elastomer material.

Preferably, the first flexible membrane 70 and the second flexible membrane 72 are made of the same elastomer material or, in a variant, made of different materials.

Preferably, the first flexible membrane 70 and/or the second flexible membrane 72 are made of silicone.

Advantageously, the first orifices 64 of the first flexible membrane 70 and the second orifices 68 of the second flexible membrane 72 are configured to increase the elasticity of the first and second membranes 70 and 72, so as to increase the elastic deformation capacity thereof, in particular in use under the action of an applicator.

Advantageously, the first orifices 64 and the second orifices 68 have a non-cylindrical shape.

Preferably, the first orifices 64 and the second orifices 68 are identical.

In a variant not shown, the first orifices 64 and the second orifices 68 are different.

Advantageously, the first orifices 64 and the second orifices 68 have a non-rectilinear shape, in particular bent or curved.

Advantageously, the first orifices 64 and the second orifices 68 extend radially and preferably have a surface which radially increases from the inside to the outside.

In this first embodiment, the first orifices 64 and the second orifices 68 are formed by slots.

The first orifices 64 and the second slot-shaped orifices 68 extend radially from a central portion of the membrane to the outer periphery thereof.

Advantageously, the slots forming the first orifices 64 and the second orifices 68 extend radially from the inside to the outside in a non-rectilinear manner.

Advantageously, the first orifices 64 of the first flexible membrane 70 and the second orifices 68 of the second flexible membrane 72 are respectively configured so as to increase the flexibility of the first and second membranes 70 and 72.

As explained above and in particular illustrated in FIGS. 8 and 9, the presence of non-rectilinear slots contributes to obtaining improved flexibility over the whole of the first flexible membrane 70 and the second flexible membrane 72 due to an axis D of deformation associated with each slot when, during use, a supporting applicator axially causes a deformation of the membranes 70 and 72 in the direction of the cavity 30.

Preferably, the slots forming the first orifices 64 and the second orifices 68 extend radially along a bent or curved curvilinear path each having, for example, the shape of one of the blades of a propeller.

Preferably, the slots forming the first orifices 64 and the second orifices 68 extend radially from the central portion of the membrane by expanding, thus having a surface which increases radially from the inside to the outside.

Advantageously, the slots each have the shape of a propeller blade combining a curvilinear path, and such a widening conserves this propeller blade shape throughout the opening and the closing of the opening/closing device 60, i.e. in one direction as in the other direction, the slots forming the first orifices 64 and the second orifices 68 conserve the propeller blade shape during the progressive superposition thereof and as illustrated in FIG. 6.

The first orifices 64 of the first membrane 70 and the second orifices 68 of the second membrane 72 are angularly and regularly distributed about the axis O.

Advantageously, the first membrane 70 includes a number N of first orifices 64, for example here an odd number N which is equal to nine. The second membrane 72 includes the same number N of second orifices 64.

The number N of orifices 64, 68 is an even or odd number, preferably between 4 and 12, advantageously between 6 and 9.

The number N is in particular determined according to the dimensions of the first membrane 70 and of the second membrane 72, to the dimensions of the first orifices 64 and of second orifices 68, in particular to the geometric shape thereof.

In FIG. 5 illustrating the case 10 as a top view and more specifically, the opening/closing device 60, a dotted line is used to show one of the orifices 64 of the first membrane 70, which, in the blocking position, is angularly offset with respect to the second adjacent orifices 68 of the second membrane 72.

In the blocking position, each first orifice 64 is positioned between two second consecutive orifices 68 of the second membrane 72.

The number N of orifices 64 and 68 is furthermore determined such that, in the blocking position, a portion of the first membrane 70 like that of the second membrane 72 form a material strip separating the first orifices 64 from the second orifices 68 in order to guarantee an optimal blocking.

The first flexible membrane 70 includes an upper face 74 and a lower face 76, while the second membrane 72 includes an upper face 78 and a lower face 80.

Advantageously, the first membrane 70 and the second membrane 72 are in contact with one another in the blocking position and in the usage position, by way of the upper face 74 in contact with the lower face 80.

The first means 62 of the opening/closing device 60 include a fixed ring 82 to which the first flexible membrane 70 is secured.

Advantageously, the fixed ring 82 and the first flexible membrane 70 are obtained by overmoulding, in particular by bi-material injection.

The fixed ring 82 includes a wall 84 which extends radially and a wall 86 which extends axially downwards, in the extension of the wall 84, each of the walls 84 and 86 being circumferentially continuous.

The fixed ring 82 has, in its cross-section along a vertical plane intersecting with the main axis O, a shape of a lying “L”.

The first membrane 70 is secured to the free end of the radial wall 84 of the fixed ring 82.

The axial wall 86 includes, at the free axial end thereof, an edge 85 which is positioned, after mounting of the fixed ring 82, above the shoulder 36 of the body 28 of the base 14, which extends radially.

Preferably, the edge 85 has, after mounting, a clearance with respect to the shoulder 36 of the body 28 due to manufacturing tolerances of the plastic parts.

In the first embodiment, the fixed ring 82 is securely mounted on the body 28 of the base 14 by snap fitting.

In a variant, the fixed ring 82 is securely mounted on the body 28 of the base 14 by any equivalent fixing means, such as by gluing, by welding.

Preferably, the fixed ring 82 and the body 28 of the base 14 are parts made of plastic material. The choice of fixing means is therefore in particular determined according to the plastic material respectively used for the fixed ring 82 and the body 28 of the base 14.

The wall 86 of the fixed ring 82 includes an inner face 88 including beads 90 which extend radially and protrude with respect to the inner face 88.

The beads 90 illustrated in FIG. 2, however, only constitute one non-limiting example of axial blocking means to axially link the fixed ring 82 to the body 28 of the base 14, here by snap fitting.

Preferably, the fixed ring 82 includes three beads 90, which are distributed circumferentially regularly with respect to the axis O, i.e. distributed at 120¬∞.

As illustrated in a cross-section view in FIG. 3 or 4, after the mounting by snap fitting of the fixed ring 82 on the body 28 of the base 14, each bead 90 is radially engaged under the gear ring 38 so as to axially block the fixed ring 82 on the body 28 of the base 14.

The fixed ring 82 of the opening/closing device 60 being snap fitted, the ring 82 is axially blocked but not blocked in rotation with respect to the base 14.

Advantageously, the fixed ring 82 and the body 28 of the base 14 respectively include complementary means intended to ensure, by form fitting, a blocking of rotation of the ring 82 with respect to the body 28 of the base 14.

The fixed ring 82 includes, for example, at least one rib 92, preferably ribs 92, which extend axially and radially, protruding from the inner face 88.

As illustrated in FIG. 2, the fixed ring 82 includes a pair of ribs 92 between two consecutive beads 90, such that the ring 82 includes three pairs of ribs 92, which are angularly and regularly distributed about the axis O, at 120¬∞.

The ridges 92 are intended to engage with the gear ring 38 to ensure the blocking of rotation of the fixed ring 82 with respect to the body 28 of the base 14.

Advantageously, no angular indexing is necessary during the mounting by snap fitting of the fixed ring 82 on the body 28 of the base 14 as the gear ring 38 extends continuously circumferentially.

The fixed ring 82 includes at least one pin 94, here three pins 94 angularly and regularly distributed about the axis O, at 120¬∞.

The pins 94 (of which the function will be described later) have, for example, a cylindrical cross-section and extend radially protruding from the wall 86.

The second means 66 of the opening/closing device 60 include a rotating ring 96 to which the second flexible membrane 72 is secured.

The rotating ring 96 includes a wall 98 which extends radially and a wall 100 which extends axially downwards in the extension of the wall 98, each of the walls 98 and 100 being circumferentially continuous.

The rotating ring 96 has, in its cross-section along a vertical plane intersecting with the main axis O, a shape of a lying “L”.

Preferably, the wall 100 includes an outer surface 102 which is grooved (or knurled) so as to facilitate the gripping of the rotating ring 96 during handling to drive it in rotation between the blocking position and the usage position and vice versa.

Advantageously, the wall 98 includes, on the upper surface, at least one marking 104, for example at least one arrow and one pictogram representing an open lock, in order to indicate the direction of rotation of the rotating ring 96 to drive it from the blocking position to the usage position.

As illustrated in FIGS. 5 to 7 by the arrow of the marking 104, the rotation of the rotating ring 96 in the anticlockwise direction causes the passage from the blocking position (FIG. 5) to an intermediate position (FIG. 6) and then to the usage position (FIG. 7).

Conversely, the blocking of the cavity 30 by means of the opening/closing device 60 is obtained by driving the rotating ring 96 in the clockwise direction to move it from the usage position or an intermediate position to another intermediate position or the blocking position.

Advantageously, the direction of rotation of the rotating ring 96 between the usage position and the blocking position is the same at that of the cover 12 between the opening position and the closed position.

The screwing of the cover 12 to close the case 10 is thus carried out in the same direction (clockwise) as that of the rotating ring 96 thanks to which any unexpected opening of the opening/closing device 60 is avoided during the closing of the case 10 and the optimal blocking of the cavity 30 is guaranteed.

The axial wall 100 includes, at the free axial end thereof, an edge 105 which is able to engage, after mounting of the rotating ring 96, with the shoulder 36 of the body 28 of the base 14 extending radially.

The second membrane 72 is secured to the free end of the radial wall 98 of the rotating ring 96.

Advantageously, the rotating ring 96 and the second flexible membrane 72 are obtained by overmoulding, in particular by bi-material injection.

Preferably, the fixed ring 82 is first mounted on the body 28 of the base 14 before the insertion of the rotating ring 96 of the opening/closing device 60.

In a variant, the fixed ring 82 and the rotating ring 96 of the opening/closing device 60 are mounted beforehand to form a single subassembly.

The opening/closing device 60 formed by the single subassembly including the membranes 70, 72 is then mounted on the base 14, here by snap fitting, in particular after having filled the cavity 30 with powdered cosmetic product P.

In the first embodiment, the mounting of the opening/closing device 60 is obtained by elastic interlocking of the fixed ring 82 on the ring gear 66 of the body 28 of the base 14.

Preferably, the fixing of the opening/closing device 60 on the base 14 by snap fitting is not reversible.

In a variant, the opening/closing device 60 is fixed reversibly on the base 14 in order to make the disassembly thereof possible with the aim, in particular, of being able to refill the cavity 30 with powdered cosmetic product P.

Advantageously, the opening/closing device 60 of the case 10 includes connection means configured to link axially, preferably without clearance, the rotating ring 96 to the fixed ring 82, by leaving the rotating ring 96 free to rotate with respect to the fixed ring 82.

The fixed ring 82 is designed to be mounted axially inside the rotating ring 96. The fixed ring 82 has an outer diameter which is substantially equal to the inner diameter of the rotating ring 96.

The connection means include, on the one hand, at least one male element formed by the pins 94, which are secured to the fixed ring 82.

The connection means include, on the other hand, at least one female element formed by grooves 106 which, provided in the rotating ring 96, are respectively associated with the pins 94.

The grooves 106 are made hollowed out from the inner face 109 of the wall 100 of the rotating ring 96, the three the grooves 106 are circumferentially distributed regularly about the axis O, at 120¬∞.

The three grooves 106 are identical, such that the following description of one, which can more specifically be seen in FIG. 2, is the same for the two others.

Each groove 106 successively includes, along an “L”-shape, at least one section 108 for mounting the pin 94 which extends axially and a section 110 for guiding the pin 94 which extends circumferentially in a radial plane, orthogonal to the axial direction determined by the main axis O.

The mounting of the fixed ring 82 with the rotating ring 96 is a mounting called “bayonet mounting”.

The mounting of the fixed ring 82 with the rotating ring 96 is achieved by axially introducing each of the pins 94 in the mounting section 108 of one of the grooves 106 which is followed along a translation movement before engaging, according to a rotation movement, each pin 94 in the guiding section 110 of the groove 106.

Advantageously, the mounting section 108 has an inlet which is flared to facilitate the introduction of the pin 94. The mounting section 108 is connected to the guiding section 110 according to a substantially right-angled bend.

Preferably, the guiding section 110 includes a lug 112 which, arranged at the start of the guiding section 110 of the groove 106, is forcibly crossed by the pin 94.

Advantageously, the lug 112 in particular makes it possible to produce a secure mounting thanks to which the pin 94 is then kept in the associated groove 106.

According to a particularly advantageous characteristic, the connection means including the pins 94 and the associated grooves 106 are configured to integrate different functions which ensure good functioning of the opening/closing device 60.

One of these functions is a function for rotationally guiding, between the fixed ring 82 and the rotating ring 96, the opening/closing device 60.

Advantageously, the guiding section 110 of the groove 106 includes guiding surfaces, respectively an upper surface 114 and a lower surface 116, intended to engage with the pin 94.

Another of the functions is a positioning function with abutment means which determine respectively the blocking position and the usage position, the two extreme positions of the rotating ring 96 of the opening/closing device 60.

Advantageously, the guiding section 110 of the groove 106 includes at least one first abutment face 118 and a second abutment face 120, intended to engage with the pin 94, which extend axially.

The first abutment face 118 determines the usage position and the second abutment face 120 determines the blocking position.

The course of the rotating ring 96 between the blocking position and the usage position (and vice versa) can, for example, be expressed in degrees, by an angle extending circumferentially between the first abutment face 118 and the second face 120 and centred on the axis O.

Preferably, the first abutment face 118 is formed by the end of the guiding section 110.

Preferably, the second abutment face 120 is supported by the lug 112 protruding in the guiding section 110 of the groove 106.

Another of the functions is a function for temporarily spacing the second membrane 72 with respect to the first membrane 70 in order to avoid any friction between them during the actuation of the rotating ring 96.

Indeed, the first flexible membrane 70 and the second flexible membrane 72 are advantageously in contact with one another in the blocking position and in the usage position.

Advantageously, the case 10 includes spacing means configured to axially cause a movement of the rotating ring 96 relative to the fixed ring 82 according to an up-and-down movement when the rotating ring 96 is rotationally driven between the blocking position and the usage position and vice versa.

The spacing means functioning according to the up-and-down movement make it possible to create an axial clearance “j” between the upper face 74 of the first membrane 70 and the lower face 80 of the second membrane 72 when the rotating ring 96 is actuated in one direction or in the other.

Advantageously, the spacing means are constituted of the upper face 114 and the lower face 116 of the guiding section 110 of the groove 106 with which the pin 94 engages to ensure the guiding function.

The guiding faces 114 and 116 of the groove 106 each have a profile configured to axially cause the up-and-down movement of the rotating ring 96 relative to the fixed ring 82.

When the rotating ring 96 is driven in rotation between the blocking position and the usage position (and vice versa), each pin 94 will engage with the convex profile of the upper guiding face 114, the lower face 116 having, by symmetry, a concave profile.

When the opening/closing device 60 occupies an intermediate position between the blocking position and the usage position, there is thus axially a clearance “j” between the first membrane 70 and the second membrane 72.

The case 10 is used with an opening/closing device 60 occupying the usage position preferably at the intermediate position so as to avoid the powdered cosmetic product P from interfering between the first membrane 70 and the second membrane 72.

Advantageously, the opening/closing device 60 includes first sealing means 122 configured to ensure a sealing between the first means 62 and the second means 66.

Preferably, the first flexible membrane 70 of the opening/closing device 60 includes the first sealing means 122 intended to engage with the second flexible membrane 72.

Advantageously, the first sealing means 122 are integrally formed with the material of the first flexible membrane 70.

As illustrated in FIGS. 1 to 4, the first flexible membrane 70 includes at least one sealing snap ring forming the first sealing means 122.

The sealing snap ring 122 protrudes axially with respect to the upper face 74 of the first membrane 70.

The sealing snap ring 122 is arranged at the radial periphery of the first membrane 70, delimiting a perimeter inside of which the first orifices 64 are arranged.

The sealing snap ring 122 is intended to engage with the lower face 80 of the second membrane 72, at least in the usage position and in the blocking position, such as illustrated in FIG. 3.

Advantageously, the first sealing means 122 make it possible to avoid the powdered cosmetic product P from escaping radially and in particular from interfering between the fixed ring 82 and the rotating ring 96.

Advantageously, the opening/closing device 60 includes second sealing means 124 configured to ensure sealing of the case 10 in the closed position.

Preferably, the second flexible membrane 72 of the opening/closing device 60 includes the second sealing means 124 intended to engage with the cover 12 of the case 10 in the closed position.

Advantageously, the second sealing means 124 are integrally formed of one single part, with the material of the second flexible membrane 72.

As illustrated in FIGS. 1 to 4, the second flexible membrane 72 includes at least one sealing snap ring forming the second sealing means 124.

The sealing snap ring 124 protrudes axially with respect to the upper face 78 of the second membrane 72.

The sealing snap ring 124 is arranged at the radial periphery of the second membrane 72, delimiting a perimeter inside of which the second orifices 68 are arranged.

The sealing snap ring 124 is intended to engage with the lower face 20 of the cover 12 in the closed position.

Advantageously, the spacing means functioning according to the up-and-down movement make it possible, by creating an axial clearance “j” between the upper face 74 of the first membrane 70 and the lower face 80 of the second membrane 72 when the rotating ring 96 is actuated in the opening direction, to release the sealing snap ring 124 and to facilitate the rotation from the blocking position to the usage position.

As illustrated in FIG. 3, the centring ring 22 of the cover 12 contributes, in the closed position, to the centring of the sealing snap ring 124 surrounding it, providing a good seal during the engagement with the inner face 20 of the cover 12.

Advantageously, the centring ring 22 includes a lower face 126 which is intended to engage, to be in contact, with the upper face 78 of the second membrane 72 so as to limit any axial movement thereof, in particular during transport.

Thanks to the first sealing means 122 and the second sealing means 124, as well as the centring ring 22, the dispersion of the powdered cosmetic product P is very limited, such that the case 10 features a good level of hygiene (or cleanliness).

Advantageously, all of the sealing means 122, 124 and the centring ring 22 make it possible at the very least to limit the dispersion of the powdered cosmetic product P outside of the case 10 in the closed position, for example during transport.

An example of usage of a case 10 according to the first embodiment and more specifically of the opening/closing device 60 will be described below, thanks to the flexible membranes 70 and 72, whereby the problems in dispersing the powdered cosmetic product P are at least limited and the hygiene of the case 10 is improved.

When the user wants to apply make-up with the powdered cosmetic product P contained in the cavity 30 of the base 14 of the case 10, the user first proceeds with the opening of the case 10, in this first embodiment by unscrewing the cover 12.

The user then proceeds with actuating the opening/closing device 60 associated with the cavity 30 so as to achieve a total or partial opening.

The rotating ring 96 of the opening/closing device 60 is thus rotationally driven, about the axis O, relative to the base 14 of the case 10 so as to pass from the blocking position (FIG. 5) to the intermediate position (FIG. 6) or the usage position (FIG. 7).

In the usage position, the second orifices 68 of the second membrane 72 are axially aligned with the first orifices 64 of the first membrane 70, the first orifices 64 and second orifices 68 being identical.

The powdered cosmetic product P, such as free powder, contained in the cavity 30 of the base 14 is thus directly accessible through the second orifices 68 positioned just below the first orifices 64.

Advantageously, it is indeed not necessary to flip over or to shake the case 10 to discharge the powdered cosmetic product P.

Preferably, the user can thus retrieve the powdered cosmetic product P using an applicator, such as a brush or a sponge.

Advantageously, the outer diameter of the second flexible membrane 72 (and here the first flexible membrane 70) is greater than 0.75 times the outer diameter of the base 14 of the case 10 so as to provide a large and wide removal surface to the user.

The use of an applicator, such as a brush or a sponge, is therefore advantageously ample and comfortable for the user.

The applicator being in contact with the upper face 78 of the second membrane 72, the user exerts a force using the applicator, which axially causes a joint deformation of the second membrane 72 and of the first membrane 70, respectively flexible or elastic.

The elastic deformation capacity of the second membrane 72 and of the first membrane 70 is further determined by the elastomer material used for the manufacturing thereof by overmoulding, in particular by bi-material injection, respectively with the rotating ring 96 and the fixed ring 82.

Preferably, the elastomer material is silicone and the same material is used for the second membrane 72 and the first membrane 70.

Advantageously, the first orifices 64 and the second orifices 68, respectively slot-shaped, extend radially and by widening from the centre of each of the membranes 70 and 72 outwards.

Advantageously, the slots forming the first orifices 64 and the second orifices 68 are curved.

The first orifices 64 and the second orifices 68, by opening respectively the first membrane 70 and the second membrane 72, will advantageously increase the elastic deformation capacity thereof.

Advantageously, the axial force applied by means of the applicator on the upper face 78 of the second membrane 72 is carried out together with a rotation movement in the clockwise direction, i.e. along the inclination direction of the slot-shaped orifices 64 and 68.

The powdered cosmetic product P is thus retrieved by the applicator by passing through the openings formed by the second orifices 68 aligned with the first orifices 64, superficially retrieved in particular when the applicator is a sponge and/or partially through the orifices 68 and 64, in particular when the applicator is a brush.

By comparison with a flipping or shaking movement of the case, it will be understood that the movement which is described makes it possible to limit the dispersion of the powdered cosmetic product P, due to the direct access given to the product P which is preferably achieved with an applicator.

During use of the applicator to retrieve the powdered cosmetic product P, such as a brush illustrated in FIG. 8, the dispersion is limited by the portions of the membranes 70 and 72 which, extending between the first orifices 64 and the second orifices 68, form a barrier for the passage of the product P.

The axial pressure exerted locally on the first flexible membrane 70 and the second flexible membrane 72 by the applicator and represented by an arrow in FIG. 8 causes, in the contact zone, the respective axial deformation thereof in the direction of the cavity, the deformation being accompanied by a phenomenon of “closing” of the non-rectilinear slots located radially opposite the contact zone represented schematically as a dotted line in FIG. 9.

Indeed, the slots will stretch radially due to the deformation of each of the flexible membranes 70 and 72, thereby causing the radial edges to shrink as they move closer to one another.

Advantageously, this phenomenon of “closing” of the slots, more specifically illustrated in FIG. 9, contributes to limiting the dispersion of the powdered cosmetic product P in the zones not touched by the applicator.

By comparison with circular orifices according to the state of the art, which generally have a reduced size, the slots forming the first orifices 64 and the second orifices 68 offer the user a surface for retrieving the cosmetic product P which is a lot larger, both in the usage position and in the intermediate position.

Advantageously, the surface for retrieving the cosmetic product P extends radially over almost all of the diameter of the opening/closing device 60 including the first flexible membrane 70 and the second flexible membrane 72 and, in particular, it is not only located at the centre.

Advantageously, the first sealing means 122 formed by the annular snap ring of the first membrane 70 make it possible to prevent, when using the case 10 or during transport, the powdered cosmetic product P from being emptied radially, in particular between the fixed ring 82 and the rotating ring 96.

Advantageously, the case 10 affords a good level of hygiene (or cleanliness), in particular during the use thereof.

When the user has finished applying make-up, the user actuates the rotating ring 96 of the opening/closing device 60 to return it to the blocking position.

In the blocking position, the first orifices 64 are offset with respect to the second orifices 68, the first membrane 70 and the second membrane 72 thus completely blocking the opening 44 of the part 40, isolating the cavity 30 containing the powdered cosmetic product P.

To close the case 10, the user will then screw the cover 12 on the body 28 of the base 14.

In the closed position, the second sealing means 124 formed by the annular snap ring of the second membrane 72 engage with the lower face 20 of the cover 12 so as to isolate, in particular, the opening/closing device 60 with respect to the outside of the case 10.

The powdered cosmetic product P possibly present at the level of the upper face 78 of the second membrane 72 following the use of the case 10 is therefore prevented from being emptied outside of the case 10.

By comparison with cases according to the prior art, the case 10 affords a good level of hygiene (or cleanliness) and can be transported, for example in a bag, without causing problems of dispersing the product P.

By comparison with the first embodiment shown in FIGS. 1 to 9, a second embodiment of a case 10 will now be described, as shown in FIGS. 10 and 11.

The same references designate the same means as those described above for the first embodiment.

In FIG. 10, the cover 12, which is made transparent, is fixed on the base 14 by screwing as in the first embodiment.

The opening/closing device 60 is identical to that of the first embodiment and will therefore not be described in detail.

In this second embodiment, the base 14 is made of two parts, respectively the body 28 and the bottom 32.

By comparison, the body 28 of the base 14 does not include any bellows-shaped part 40.

The bottom 32 is consequently modified and differs from that of the first embodiment in that it does not include, in particular, an opening 52 or partitions 54, 56.

Advantageously, the bottom 32 is structurally simplified.

According to one of the characteristics of this second embodiment, the cavity 30 is integrally formed with the body 28 of the base 14.

By comparison, the cavity 30 of the case 10 according to this second embodiment has a volume which is less than that obtained with the bellows-shaped flexible part 40.

Thus, a case 10 according to one or the other of the embodiments will be selected according to the desired volume of powdered cosmetic product P.

By comparison with the first embodiment shown in FIGS. 1 to 9, a third embodiment of a case 10 will now be described, as shown in FIGS. 12 to 16.

The same references designate the same means as those described above for the first embodiment.

The cover 12 is here not fixed on the base 14 by screwing, but by a bayonet mounting.

The cover 12 includes at least one finger 128 which extends protrudes inwards from the inner face 23 of the axial wall 18.

Preferably, the cover 12 includes three fingers 128 which are angularly and regularly distributed about the axis O, at 120¬∞, such as illustrated in FIGS. 12 and 13 with the cover shown in transparency.

As in the first embodiment, the base 14 made of two parts includes a body 28 and a bottom 32.

The body 28 includes a bellows-shaped part 40 which delimits the cavity 30 intended to receive the powdered cosmetic product P.

The body 28 includes a wall 34 which, extending axially, is tiered. The wall 34 successively includes from the bottom upwards, a lower section 34A, an intermediate section 34B and an upper section 34C.

By comparison, the upper section 34C of the wall 34 of the body 28 of the base 14 does not include a gear ring 38.

If the fixed ring 82 is mounted, as described above, by snap fitting on the body 28 of the base 14, the embodiment of the rotational blocking means of the ring 82 with respect to the body 28 results from an engagement of different forms.

Preferably, the fixed ring 82 includes at least one boss, here three bosses 130, which are distributed at 120¬∞ and which protrude radially from the inner face 88 of the axial wall 86 of the fixed ring 82.

The three bosses 130 are intended to each engage with an integral complementary recess 132 that include the upper section 34C of the wall 34 of the body 28 of the base 14.

The form-fitting between the bosses 130 and the recesses 132 ensure the rotational blocking of the fixed ring 82 with respect to the base 14.

Contrary to the first embodiment, an angular indexing is here necessary during the mounting of the fixed ring 82 on the body 28 of the base 14, the bosses 130 needing to be axially aligned with the recesses 132.

Advantageously, the case 10 includes fool proofing means configured to enable the closing of the cover 12 of the case 10 only when the opening/closing device 60 occupies the blocking position.

The rotating ring 96 of the opening/closing device 60 includes three notches 134 which, arranged in the wall 100, are angularly and regularly distributed like the fingers 128 of the cover 12.

The fixed ring 82 includes three lugs 136 which protrude radially outwards from the wall 86.

The rotating ring 96 includes cut-outs 138, axially opened downwards, which are intended to each receive one of the lugs 136 of the fixed ring 82 after the mounting thereof to obtain a single subassembly.

The cut-outs 138 are configured to enable the rotation of the rotating ring 96 with respect to the fixed ring 82 during the actuation of the rotating ring 96 between the blocking and usage positions of the opening/closing device 60.

Each lug 136 includes a notch 140 such that the lug 136 circumferentially has a tiered profile.

The notches 134 and 140 constitute the fool proofing means intended to selectively enable the axial passage of the fingers 128 during handling of the cover 12 to proceed with the opening or with the closing of the case 10.

The body 28 of the base 14 includes three grooves 142 which, associated with the fingers 128, are arranged in the body 28 of the base 14, here in the outer surface of the intermediate section 34B of the wall 34.

Such as illustrated in FIGS. 12 to 16, each groove 142 includes a first introduction section 144 which is then extended by a second closing section 146.

The first section 144 of the groove 142 is axially open upwards to make it possible to introduce (or remove) the finger 128 to/from the cover 12.

The second closing section 146 of the groove 142 extends obliquely circumferentially in the wall 34.

Preferably, a locking lug 148 is arranged in the second closing section 146 of the groove 142.

Advantageously, the locking lug 148 makes it possible to block the finger 128 at the end position when the cover 12 is in the closed position thanks to which any unexpected opening of the case 10 is avoided, in particular during transport.

Advantageously, the crossing of the lug 148 by the finger 128 is accompanied by a resistance requiring a slight additional force thanks to which information relating to the locking or the unlocking is given to the user.

The main steps of a closing movement of the cover 12 of the case 10 have been shown in FIGS. 14 to 16, in order to illustrate the functioning of the fool proofing means of the case 10.

To close the case 10, the cover 12 is moved axially relative to the body 28 of the base 14 according to a translation movement.

When the opening/closing device 60 occupies the blocking position illustrated in FIG. 14, the notch 134 of the rotating ring 96 is thus axially aligned with the notch 140 of the fixed ring 82.

The notch 140 of the fixed ring 82 is also axially aligned with the first introducing section 144 of the groove 142 such that the finger 128 is thus introduced into the groove 142 as illustrated in FIG. 15.

The cover 12 is then driven about the axis O according to a rotation movement so as to engage the finger 128 in the second closing section 146 of the groove 142, here until it crosses over the locking lug 148, to reach the closed position illustrated in FIG. 16.

When the opening/closing device 60 occupies the usage position (not shown), the notch 134 of the rotating ring 96 is not axially aligned with the notch 140 of the fixed ring 82.

The passage from the blocking position to the usage position of the opening/closing device 60 by the rotation of the rotating ring 96 is accompanied by an angular offsetting of the notch 134 with respect to the notch 140.

In the usage position, the notch 134 of the rotating ring 96 is axially aligned with the lug 136, which is configured to axially block the passage of the finger 128.

Advantageously, if the opening/closing device 60 does not occupy the blocking position, the cover 12 cannot therefore close the base 14 of the case 10, as the lug 136 inserted between the notch 134 and the first introducing section 144 of the groove 142 forms an obstacle to the passage of the finger 128.

The fool proofing means make is possible to guarantee that, with the case 10 being closed by the cover 12, the cavity 30 is properly blocked by the opening/closing device 60 so as to avoid any unexpected dispersion of the powdered cosmetic product P likely to occur through the membranes in the usage position.

As in the first and second embodiments, the sealing means formed by the snap rings 122 and 124 of the membranes 70 and 72 also make it possible to prevent the dispersion of the powdered cosmetic product P and to obtain a case 10 having a good level of hygiene (or cleanliness).

Of note, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “includes”, and/or “including,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

As well, the corresponding structures, materials, acts, and equivalents of all means or step plus function elements in the claims below are intended to include any structure, material, or act for performing the function in combination with other claimed elements as specifically claimed. The description of the present invention has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the invention. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Having thus described the invention of the present application in detail and by reference to embodiments thereof, it will be apparent that modifications and variations are possible without departing from the scope of the invention defined in the appended claims as follows: 

1. A case for powdered cosmetic product, comprising: at least one cover and one base which are movably mounted against one another between at least one closed position and one open position of the case, wherein the base comprises a cavity intended to receive said powdered cosmetic product, which is closed by an opening/closing device configured to selectively dispense said powdered cosmetic product, said opening/closing device comprising at least first means which, comprising first orifices in communication with the cavity, are secured to the base, and second means which, comprising second orifices, are rotatably mounted with respect to the first means between at least one blocking position and one usage position, wherein the first means comprises at least one first flexible membrane and the second means comprises at least one second flexible membrane.
 2. The case according to claim 1, wherein at least one of the first orifices passes axially through the first membrane and at least one of the second orifices passes axially through the second membrane.
 3. The case according to claim 1, wherein at least one of the first orifices of the first flexible membrane and at least one of the second orifices of the second flexible membrane have a non-cylindrical shape.
 4. The case according to claim 2, wherein at least one of the first orifices of the first flexible membrane and at least one of the second orifices of the second flexible membrane have a non-rectilinear shape, in particular bent or curved.
 5. The case according to claim 1, wherein at least one of the first orifices (64) of the first flexible membrane and at least one of the second orifices of the second flexible membrane have a surface which radially increases from the inside outwards.
 6. The case according to claim 1, wherein at least one of the first orifices of the first flexible membrane and at least one of the second orifices of the second flexible membrane are respectively slot-shaped.
 7. The case according to claim 1, wherein the first orifices of the first flexible membrane and the second orifices of the second flexible membrane are respectively configured to make it possible to retrieve a free quantity of powdered cosmetic product by means of an applicator, through the second orifices of the second membrane, aligned totally or partially with the first orifices of the first membrane.
 8. The case according to claim 1, wherein the first orifices of the first flexible membrane and the second orifices of the second flexible membrane are respectively configured so as to increase the flexibility of the first membrane and of the second membrane.
 9. The case according to claim 1, wherein the first flexible membrane and the second flexible membrane are made of an elastomer material, in particular silicone.
 10. The case according to claim 1, wherein the first membrane and the second membrane are in contact with one another in the blocking position and in the usage position.
 11. The case according to claim 1, wherein the cavity is provided in a flexible part which is secured to the base, said part having in particular a bellows shape.
 12. The case according to claim 1, wherein the first means of the opening/closing device comprise a fixed ring to which the first flexible membrane is secured.
 13. The case according to claim 12, wherein the fixed ring is axially mounted on a body of the base by snap fitting and in that rotation of the fixed ring is blocked by form fitting with respect to said body of the base.
 14. The case according to claim 1, wherein the second means of the opening/closing device are able to occupy at least one intermediate position between the blocking position and the usage position, wherein the second orifices are partially superposed on the first orifices.
 15. The case according to claim 1, wherein the second means of the opening/closing device comprise a rotating ring to which the second flexible membrane is secured. 